We have started a Mastodon instance at OpenEdTech.social and you’re welcome to join us! 

Our main Open EdTech channel is at https://openedtech.social/@openedtech 

Mastodon is an open-source, free software that allows users to run self-hosted social networking services. It has microblogging features similar to Twitter.  Each user is a part of a specific Mastodon instance (also known as a server), which functions as a federated social network and enables communication between users on various instances. Users have the freedom to choose a node whose policies they value while still being part of the entire global social network.

Mastodon is a part of the Fediverse, a collection of server platforms that use the ActivityPub standard from W3C to communicate, which is one we are considering in some of our designing for future Open EdTech. 

Our Mastodon server augments our Matrix chat rooms (another open federated standard) which are better for group and direct discussions with full encryption and privacy.